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Just this past weekend my engine started knocking and has only gotten worse, what is the cause?

Tiny
STEVENMKING2
  • MEMBER
  • 2004 GMC ENVOY
  • 91,000 MILES
It sounds like a card in the spokes of a bike tire and gets faster and louder with the increase of speed and RPM's, it is constant from start up to engine shut off.
Tuesday, November 1st, 2011 AT 2:11 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Could be internal or external. In this forum, it would be almost impossible to determine the noise without hearing it.

Remove the serpentine belt and see if the noise is still there. It may be an external failure. If not, then you have an internal failure.

Roy
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Tuesday, November 1st, 2011 AT 2:30 PM
Tiny
STEVENMKING2
  • MEMBER
  • 2 POSTS
If it is an internal problem, what am I looking at it being?
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Tuesday, November 1st, 2011 AT 4:21 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Bearings, pistons or something broken. Whatever it is would be major. If it is internal, I would consider a rebuilt motor.

Roy
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Tuesday, November 1st, 2011 AT 4:39 PM

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